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    <title>Document</title>
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    <ul id="test-list">
        <li>JavaScript</li>
        <li id="001">Swift</li>
        <li>HTML</li>
        <li id="002">ANSI C</li>
        <li>CSS</li>
        <li id="003">DirectX</li>
    </ul>

    <form id="test-form" action="test">
        <legend>请选择想要学习的编程语言：</legend>
        <fieldset>
            <p><label class="selectAll"><input type="checkbox"> <span class="selectAll">全选</span><span class="deselectAll">全不选</span></label> <a href="#0" class="invertSelect">反选</a></p>
            <p><label><input type="checkbox" name="lang" value="javascript"> JavaScript</label></p>
            <p><label><input type="checkbox" name="lang" value="python"> Python</label></p>
            <p><label><input type="checkbox" name="lang" value="ruby"> Ruby</label></p>
            <p><label><input type="checkbox" name="lang" value="haskell"> Haskell</label></p>
            <p><label><input type="checkbox" name="lang" value="scheme"> Scheme</label></p>
            <p><button type="submit">Submit</button></p>
        </fieldset>
    </form>
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